How to Make Linseed Oil Putty

Use linseed oil putty to fill in cracks on wood floors and more.
Use linseed oil putty to fill in cracks on wood floors and more. (Image: wood image by Zbigniew Nowak from

Linseed oil is a natural oil that comes from flax seed. It offers preserving properties as well as water resistance, which makes it an effective option for wood, concrete, varnishes, stains and putties. Mixing linseed oil to create a putty allows you to carry out general home repairs such as filling in floors, glazing windows and filling holes.

Things You'll Need

  • 80 lbs. dry whiting, bolted
  • 20 lbs. white lead, dry
  • 10 lbs. raw linseed oil
  • 5 lbs. grinding Japan drier
  • Bucket
  • Paint stick
  • Scraping knife
  • Sandpaper (optional)
  • Gloves
  • Mask
  • Protective eyewear

Video of the Day

Combine 80 lbs. bolted dry whiting, 20 lbs. dry white lead, 10 lbs. raw linseed oil and 5 lbs. grinding Japan drier in a bucket.

Mix the ingredients together with a paint stick until you have an even, well-blended putty. To make it softer, add more oil.

Apply the putty to home repairs such as floor cracks with a scraping knife. Press it into place properly, and fill cracks adequately.

Tips & Warnings

  • Once it dries, the putty should become extremely hard in approximately two days (but it may take longer). Only once it has dry you can sand down putty with sandpaper to make it more neat.
  • You cannot store this putty, as it will eventually harden.
  • Take care when handling the ingredients. Wear gloves, a mask over your nose and mouth, and protective eyewear to avoid inhaling anything or getting it in your eyes.
  • If you do not like how the putty looks, change it or fix it before it dries and hardens.
  • If any eye contact occurs, immediately wash your eyes and, if necessary, seek medical attention.


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